Home / 283,828.81-391,778.63-169,143.45

Finding the Fourth Proportional to 283,828.81, 391,778.63 and 169,143.45

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Solution

The fourth proportional to 283,828.81, 391,778.63 and 169,143.45 is: 233,474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,828.81 : 391,778.63 = 169,143.45 : x
  2. Step 2: Convert to fraction form
    283,828.81/391,778.63 = 169,143.45/x
  3. Step 3: Cross multiply
    283,828.81x = 391,778.63 × 169,143.45
  4. Step 4: Simplify right side
    283,828.81x = 66,266,789,114.47
  5. Step 5: Solve for x
    x = 66,266,789,114.47/283,828.81
  6. Step 6: Final answer
    x = 233,474.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.